PRODUCT INFORMATION CEA 3207A May/2005 CEA 3207A ARM7-Based Car Entertainment Controller The CEA 3207A is a device of Micronas’ 32-bit Car Entertainment Controller family based on an ARM7TDMI CPU core. Like the already available CDC 3207G, the CEA 3207A is part of the LEAP family concept (Low Emission Automotive Processor). The microcontroller with its ARM7TDMI RISC CPU core allows two states of operation: ARM state with 32-bit instructions and THUMB state with 16-bit instructions. It is suited for entertainment-related applications like car radio or navigation systems. The current version CEA 3207A offers 32 kBytes of SRAM, 512 kBytes of Flash, and 8 kBytes of boot ROM. Communication is possible via two FullCAN modules, two I2C modules and two UART or SPI modules each. Due to its scalable architecture, further derivatives can be obtained within short lead time. An upgrade version with 1 MByte Flash and up to 64 kBytes RAM, as well as a downgrade version with 256 kBytes Flash and 16 kBytes RAM in the same package is planned. All devices have the patented built-in ERM (EMI Reduction Module) and are operated on a single 5-V power supply. Features ◆ Two UARTs, two SPIs ◆ 512 kBytes Flash ROM ◆ 32 kBytes SRAM ◆ Two CAN modules with 512 Bytes each of object RAM according to Bosch specification V2.0B (32 message objects) ◆ 8 kBytes boot ROM ◆ Two I2C master modules ◆ Four CPU operation modes (Deep Slow, Slow, Fast, PLL) ◆ Six PWM modules (configurable as 2 ×8 bit or 1×16 bit) ◆ PLL circuitry delivering up to 50 MHz ◆ Pulse frequency modulator ◆ 4- to 5-MHz oscillator ◆ Sound generator with auto decay ◆ EMI reduction module (ERM) ◆ Two SW-selectable clock outputs ◆ Digital watchdog ◆ 16-bit free-running counter with six capture/compare modules ◆ Central clock divider ◆ Interrupt controller with 40 inputs and 16 priority levels ◆ 1 ×16 bit timer and 4x8 bit timer ◆ JTAG interface ◆ Six port interrupts ◆ −40 to +105 °C case temperature range ◆ Regulator input supervision for reset/ alarm ◆ Single 3.5 V to 5.5 V supply voltage (limited I/O performance below 4.5 V) ◆ Clock and supply supervision ◆ Up to 102 GPIOs ◆ 16-channel 10-bit ADC ◆ 128-pin PQFP package with 0.5 mm pin pitch ◆ Two comparators ◆ ADC reference (1 internal, 3 external) ◆ 48 × 4 LCD module (optional) ◆ Three DMA channels PRODUCT INFORMATION CEA 3207A May/2005 Application The CEA 3207A targets infotainment applications with a need for high performance. It serves as controller, as well as interface to signal processing units. Tuner DSP I2S I2C DAC 3550A Due to its scalable architecture, the CEA 3207A can be upgraded with more memory, CAN controller, DSP, and graphical functions. The application can also be upgraded towards multistandard decoding capabilities (MP3, AAC, WMA) using Micronas’ MAS 35xx family devices. 34 71 2 4 36 , 5 6 47 / CEA 32xxA ARM7 K7 A 1 2 CD-ROM Subwoofer Display 6261-102-1x Fig. 1: Example application: CD-ROM-based car radio System Architecture The Car Entertainment Controller CEA 3207A contains an embedded ARM7TDMI processor which operates at a maximum clock frequency of 50 MHz. VREFINT VREF AVDD AVSS BVDD 32 PPorts Test Watchdog Clock 40-Input Interrupt Controller PLL/ERM JTAG Interface Test / Debug 32 kB SRAM 2.5-V Reg. HPorts The built-in ERM delivers superb EMI results reducing the peak values by up to 10 dBµV. 16 Reset VDD VSS 2.5-V Reg. ARM7TDMI CPU Wait Comp The system is scalable in terms of Flash memory, RAM, CAN, and the number of peripherals and can be expanded up to 1 MByte of Flash memory. 3.3-V Reg. DMA Contr. P0.6 Comp Bus Controller 512 kB Flash 8 kB Boot ROM Bandgap Ref. Bridge 10-Bit ADC UARTS 2 × UART UARTS LCD Control (optional) UARTS 16Bit CCC 0 UART S 1 × 16-Bit Timer UARTS 2 × SPI UARTS Audio Module UARTS CAPCOM 0,1,2,3 UA 4 × 8-Bit Timer UARTS 2 × CAN UARTS Clock Out 0,1 UARTS 16Bit CCC 1 6UART × 8/16-Bit S PWM UARTS 2 × I²C Bus ERM UARTS (EMI Reduction Module) UPorts FVDD FVSS Bridge Internally, this device works with different supply voltages: 2.5 V for the core and 3.3 V for the Flash memory. UVDD UVSS 52 UARTS CAPCOM 4, 5 Fig. 2: Block diagram of the CEA 3207A All information and data contained in this product information are without any commitment, are not to be considered as an offer for conclusion of a contract, nor shall they be construed as to create any liability. Product or development sample availability and delivery are exclusively subject to our respective order confirmation form. By this publication, Micronas GmbH does not assume responsibility for patent infringements or other rights of third parties which may result from its use. No part of this publication may be reproduced, photocopied, stored on a retrieval system, or transmitted without the express written consent of Micronas GmbH. Edition May 18, 2005; Order No. 6251-600-2PI Micronas GmbH ⋅ Hans-Bunte-Strasse 19 ⋅ D-79108 Freiburg (Germany) ⋅ P.O. Box 840 ⋅ D-79008 Freiburg (Germany) Tel. +49-761-517-0 ⋅ Fax +49-761-517-2174 ⋅ E-mail: [email protected] ⋅ www.micronas.com